Swift Tutorials

How to Clone a Dictionary in Swift

How to Clone a Dictionary in Swift ?

Answer

To clone a dictionary in Swift, you can create a new dictionary and initialize it with the original dictionary. This allows you to create a duplicate of the original dictionary.

✐ Examples

1 Cloning a Dictionary Using Initialization

We can clone a dictionary in Swift by initializing a new dictionary with the original dictionary. This example demonstrates how to declare and initialize a dictionary, use the initialization method to clone it, and print the cloned dictionary.

For example,

We start by declaring and initializing a dictionary named originalDict with integer keys and string values.
We create a new dictionary named clonedDict and initialize it with the contents of originalDict.
We print the cloned dictionary.

Swift Program

var originalDict: [Int: String] = [
    1: "One",
    2: "Two",
    3: "Three"
]

// Clone the dictionary using initialization
var clonedDict = originalDict

// Print the cloned dictionary
print("Cloned dictionary:")
for (key, value) in clonedDict {
    print("Key: \(key), Value: \(value)")
}

Output

Cloned dictionary:
Key: 1, Value: One
Key: 2, Value: Two
Key: 3, Value: Three

2 Cloning a Dictionary Using the `Dictionary` Initializer

We can clone a dictionary in Swift using the `Dictionary` initializer. This example demonstrates how to declare and initialize a dictionary, use the `Dictionary` initializer to clone it, and print the cloned dictionary.

For example,

We start by declaring and initializing a dictionary named originalDict with integer keys and string values.
We create a new dictionary named clonedDict using the Dictionary initializer with the contents of originalDict.
We print the cloned dictionary.

Swift Program

let originalDict: [Int: String] = [
    1: "One",
    2: "Two",
    3: "Three"
]

// Clone the dictionary using the Dictionary initializer
let clonedDict = Dictionary(originalDict)

// Print the cloned dictionary
print("Cloned dictionary:")
for (key, value) in clonedDict {
    print("Key: \(key), Value: \(value)")
}

Output

Cloned dictionary:
Key: 1, Value: One
Key: 2, Value: Two
Key: 3, Value: Three

Summary

In this tutorial, we learned How to Clone a Dictionary in Swift language with well detailed examples.

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How to Clone a Dictionary in Swift